Sarah is the most feared pirate knight in a galaxy that is in decline after a long war. Sara travels the galaxy in search of the “sword of Bernstein” to become heir to the imperial throne, but the aristocrats running the empire, mired in corruption, have prepared cunning traps for her. Together with the “silver” knight Celia, she falls into the clutches of the twisted twin sisters of Guillen, who control the slave-trafficking networks. Inhumane and ruthless, they subject the girls to the most elaborate sexual torture. What awaits Sara next? Will she be able to stand in the way of the Guillen twins’ ambitions, or will she suffer a horrible end?